* {
    margin: 0;
    padding: 0;
}

.linex {
    width: 100%;
    height: 1px;
    background-color: black;
    position: absolute;
}

.liney {
    width: 1px;
    height: 100%;
    background-color: black;
    position: absolute;
    top: 0px;
}

#one {
    margin-top: 600px;
}

#two {
    margin-top: 200px;
}

#three {
    margin-left: 300px;
}

#four {
    margin-left: 600px;
}

#five {
    margin-top: 900px;
}

#six {
    margin-top: 1200px;
}

#seven {
    margin-top: 500px;
}

.comment {
    position: absolute;
    width: 600px;
    height: 300px;
    margin-left: 620px;
}

.comment-title {
    position: absolute;
    width: 250px;
    height: 300px;
    margin-left: 20px;
}

.margin {
    margin-left: 300px;
    margin-top: 600px;
    width: 300px;
    height: 300px;
    background-color: yellow;
    position: absolute;
}

.margin-xiezi {
    width: 100px;
    height: 100px;
    background-color: red;
    position: absolute;
    margin-left: 200px;
    margin-top: 100px;
}

.paddingborder {
    margin-left: 300px;
    margin-top: 200px;
    width: 300px;
    height: 300px;
    background-color: yellow;
    position: absolute;
    padding: 50px 0 0 0;
    border: 5px solid blue;
}

.guaiyihezi {
    margin-left: 300px;
    margin-top: 900px;
    width: 300px;
    height: 300px;
    background-color: yellow;
    position: absolute;
    box-sizing: border-box;
    padding: 50px;
    border: 50px solid blue;
}

.xiezi {
    width: 100px;
    height: 100px;
    background-color: red;
    position: absolute;
}